Dalla Torre, 1893: 70 (catalogue); Emery, 1922c: 165 (diagnosis, catalogue); Brown, 1958h: 7 (species key); Ettershank, 1966: 155 (diagnosis, review of genus, checklist); Taylor, 1987a: 29 (New Zealand checklist); Bolton, 1995a: 1050 (census); Bolton, 1995b: 212 (catalogue); Don, 2007: 88 (review of species); Cantone, 2017: 203 (brief male diagnosis)
Extant: 2 valid species
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